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Use a Graph by Monica Yuskaitis 5 th Grade

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Copyright © 2000 by Monica Yuskaitis California Standard Addressed 1.2 Organize and display single variable data in appropriate graphs and representations… Statistics Data Data Fifth Grade Grade

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Copyright © 2000 by Monica Yuskaitis California Standard Addressed 1.1 Analyze problems by identifying relationships, distinguishing relevant from irrelevant information & …observing patterns. MathReasoning Fifth Grade Grade

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Copyright © 2000 by Monica Yuskaitis California Standard Addressed 2.3 Use a variety of methods, such as…symbols, charts, and graphs to explain mathematical reasoning. MathReasoning Fifth Grade Grade

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Copyright © 2000 by Monica Yuskaitis Objective To be able to solve problems using the “use a graph” strategy.

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Copyright © 2000 by Monica Yuskaitis Problem Solving is easy if you follow these steps Understand the problem

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Copyright © 2000 by Monica Yuskaitis Step 1 – Understand the problem Read the problem carefully. Find the important information. Identify what the problem wants you to solve.

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Copyright © 2000 by Monica Yuskaitis Step 1 - Understand the Problem A sports store kept a record of the baseball gloves they sold in one week. How many baseball gloves were sold that cost $50 or more? Read the problem carefully. Number Sold

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Copyright © 2000 by Monica Yuskaitis Step 1 - Understand the Problem A sports store kept a record of the baseball gloves they sold in one week. How many baseball gloves were sold that cost $50 or more? Find the Important Information. Number Sold

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Copyright © 2000 by Monica Yuskaitis A sports store kept a record of the baseball gloves they sold in one week. How many baseball gloves were sold that cost $50 or more? What does the problem want you to solve? Number Sold

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Copyright © 2000 by Monica Yuskaitis Problem Solving is easy if you follow these steps Decide how you’re going to solve the problem

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Copyright © 2000 by Monica Yuskaitis Step 2 - Decide how you’re going to solve the problem Use a graphUse formulas Write an equationMake a list Find a patternWork backwards Use reasoningDraw a picture Make a tableAct it out Choose a method.

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Copyright © 2000 by Monica Yuskaitis Study the labels on the graph. Number Sold

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Copyright © 2000 by Monica Yuskaitis Problem Solving is easy if you follow these steps Solve The Problem

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Copyright © 2000 by Monica Yuskaitis Find the prices $50 and above. Number Sold

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Copyright © 2000 by Monica Yuskaitis Find how many of these were sold. Number Sold

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Copyright © 2000 by Monica Yuskaitis Add these numbers up. Number Sold 12 8 + 6 6 1 2

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Copyright © 2000 by Monica Yuskaitis Problem Solving is easy if you follow these steps Look Back & Check

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Copyright © 2000 by Monica Yuskaitis Step 4 – Look Back and Check A sports store kept a record of the baseball gloves they sold in one week. How many baseball gloves were sold that cost $50 or more? Reread the Problem. Number Sold

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Copyright © 2000 by Monica Yuskaitis Step 1 - Understand the Problem A sports store kept a record of the baseball gloves they sold in one week. How many baseball gloves were sold that cost $50 or more? Did you answer the question? Number Sold 12 8 + 6 6 1 2 Yes!

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Copyright © 2000 by Monica Yuskaitis How do you read a graph when the bar doesn’t reach the next line? Populations of Small California Cities 9,000 10,000 11,000 OakdaleSalidaRiponSonora 12,000

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Copyright © 2000 by Monica Yuskaitis Let’s start by reading Oakdale’s Population Populations of Small California Cities 9,000 10,000 11,000 OakdaleSalidaRiponSonora 12,000

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Copyright © 2000 by Monica Yuskaitis First, find the two numbers that the bar falls between. Populations of Small California Cities 9,000 10,000 11,000 OakdaleSalidaRiponSonora 12,000

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Copyright © 2000 by Monica Yuskaitis Second, notice what fraction of the space the bar goes up to. Populations of Small California Cities 9,000 10,000 11,000 OakdaleSalidaRiponSonora 12,000 About one half (1/2) of the way.

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Copyright © 2000 by Monica Yuskaitis Third, now ask what is half way between 11,000 and 12,000. Populations of Small California Cities 9,000 10,000 11,000 OakdaleSalidaRiponSonora 12,000 About half way. 11,500 This is your Answer.

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Copyright © 2000 by Monica Yuskaitis Now let’s find out the population of Salida? Populations of Small California Cities 9,000 10,000 11,000 OakdaleSalidaRiponSonora 12,000

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Copyright © 2000 by Monica Yuskaitis First, find the two numbers that the bar falls between? Populations of Small California Cities 9,000 10,000 11,000 OakdaleSalidaRiponSonora 12,000

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Copyright © 2000 by Monica Yuskaitis Second, notice what fraction of the space the bar goes up to. Populations of Small California Cities 9,000 10,000 11,000 OakdaleSalidaRiponSonora 12,000 About one quarter (1/4) of the way.

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Copyright © 2000 by Monica Yuskaitis Populations of Small California Cities 9,000 10,000 11,000 OakdaleSalidaRiponSonora 12,000 About one quarter (1/4) of the way. Third, now ask what is one quarter of the way between 10,000 and 11,000. 10,250 This is your Answer.

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Copyright © 2000 by Monica Yuskaitis Credits Illustrations from: Clipart from ClickArt 125,000 Deluxe Image Pak, T/Maker Co., Broderbund Software, Inc.

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